<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>实战3</title>
</head>
<body>
    <script type="module">
        import {area,circumference} from './circle.js'

        const r = 5
        console.log(area(r))
        console.log(circumference(r))
    </script>
</body>
</html>